Brown Sugar Raspberry Jam Crumble Bars

Brown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoonBrown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoon

When spring came, even the false spring, there were no problems except where to be happiest. – Ernest Hemingway, A Moveable Feast

I still get weather alerts for our small town in North Carolina, my phone lighting up every time a tornado or severe rain or snowstorm makes its way towards Hoke County. The semi-frequent pings are a sort of tormenting nostalgia, a reminder of the Southern home, set between corn fields, cow pastures, and wooded pines, that I didn’t think I would miss.

Last Winter, I stood in my pajamas in the icy air of the front stoop and took pictures of our white-blanketed neighborhood to send to my parents, thrilled to wake up to our first ‘snow day.’ A good part of that morning was spent nose happily pressed against the fogged-up front windows, watching snowflakes gently coating the rooftops and cars and our quiet street with powdery drifts of snow, and taking a few breaks for steamy cocoa and bundled-up romps in the buried back fields with the pup. All the sorts of things most coastal-California transplants do the first time it really snows.

The novelty subsided with each snowstorm; it doesn’t take all that long for winter fatigue to set in, and I’m sure most of you in the East and Midwest, those of you enduring numbingly repetitive, miserable weather for the past few months, have long been dreaming of Spring. Meanwhile, here in Washington things are comparatively balmy. We’ve had the warmest Winter on record, the markets are filled with buckets of tulips, and the first daffodils popped up weeks ago, in front yards and along the roadways, cheery, vibrant swaths of canary yellow against mossy, evergreen pines and the ubiquitous grey sky.

But I’m often caught wandering between both places, between seasons. Memories as tangled as our wild, prickly, backyard blackberry brambles. The budding cherry trees hinting at Southern dogwoods. By now they might be starting to bloom, those graceful, delicate, branching blossoms, a last white gasp, between snow and the wild, explosive green growth of early Spring, when the land begins to hum again.

Brown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoonBrown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoonBrown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoon

Now that it’s officially Spring, daylight and warmth are within reach. I’m channeling those longer, brighter days with these gooey, raspberry jam crumble bars, thanks to last Summer’s berries, which I hoarded like a crazy person.

Any berries that weren’t eaten straight from their baskets were frozen, preserving my ephemeral stockpile, but also as insurance, a sweet means to brighten up the inexhaustible, grey drudgery of Winter with berry smoothies, jams/sauces/compotes and of course baked fruit pies and crumbles, once the seasonal abundance ended. The freezer was packed with bags of plump, peak-season berries divided nicely by variety: blue, black, and…rasp. I’ve mostly cooked my way through them… just in time for the upcoming strawberry crop to stake its claim.

Brown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoonBrown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoon

I almost made you another berry crumble, which never fails to please around these parts, and sounded utterly cozy and decadent in this last bit of Winter, but I had my heart set on a raspberry filling. Frozen raspberries are quite delicate post-defrosting, and are much better off left in their frosty state or destined for a thick, citrus-scented, vanilla-infused homemade quick jam. So instead, I present you with these gooey, jam-filled, brown sugar raspberry oat crumble bars, variations of which I make quite often, but, have unforgivably not yet shared with you.

The crust and crumble topping are one and the same, filled with whole oats, brown sugar, and warming spices, and sandwiched around a jammy, homemade raspberry jam filling, studded with vanilla and a hint of winter citrus, which all melts together into a sweet, tangy, gooey, crumbly, delicious bar.

Brown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoonBrown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoonBrown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoon

The basic crumble bars can be made more or less wholesome, the butter and flour substituted for vegan or gluten free options, and I’ve listed a few suggestions if that’s your thing, but I’ve written my favorite, traditional ingredients into the recipe below. The fresh raspberries nestled into the crumble topping are entirely optional, and I might not have included them (in the middle of winter at least) had I not happened to have some to use up from an impulse buy at the farmer’s market a few days before.

If you’re feeling particularly inspired, the homemade raspberry filling/quick jam is great, though I would never fault you for using your favorite store-bought jam or preserves (I like Bonne Maman), which would of course hasten the preparation time quite a bit. Either way, these jammy, crumbly bars are a sweet, indulgent treat to hold you over until warmer weather. Happy First Day of Spring, wherever you may be!

Brown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoonBrown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoon Brown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoon

Brown Sugar Raspberry Jam Crumble Bars (Vegan Optional/Gluten Free Optional) | Fork Knife Swoon @forkknifeswoon

Brown Sugar Raspberry Jam Crumble Bars

  • Author: Fork Knife Swoon
  • Prep Time: 30 mins
  • Cook Time: 40 mins
  • Total Time: 1 hour 10 mins
  • Yield: 16 1x



Crust/Crumble Topping

  • 2 cups old-fashioned (rolled) oats
  • 2 cups all-purpose flour*
  • 1 cup (packed) dark brown sugar
  • 1/2 tsp baking soda
  • 1/2 tsp ground cinnamon
  • 1/4 tsp ground cardamom (optional)
  • 1/2 tsp fine-grain sea salt
  • 1 cup (2 sticks) unsalted butter,* softened

Raspberry Filling

  • 11/2 cups good-quality raspberry jam
  • optional: 1/2 cup fresh raspberries
  • 1/4 cup chopped walnuts

Quick Vanilla Raspberry Jam

  • 2 cups raspberries (fresh or frozen and defrosted)
  • 2 cups granulated sugar
  • 1 Tbsp pure vanilla extract
  • optional: 1-2 tsp lemon zest


Raspberry Jam Crumble Bars:

  1. Preheat the oven to 350 degrees F. Line a 9×9 or 9×13-inch baking pan with parchment paper, leaving about an inch overhang on two sides. Set aside.
  2. In a large mixing bowl, sift together the oats, flour, brown sugar, baking soda and spices until well-combined. Cut the butter into cubes, then use your fingers to incorporate the butter into the dry ingredients, until the mixture is completely moistened, and you’ve formed a shaggy, crumbly dough, that easily sticks together when pinched. This may take a few minutes.
  3. Scoop about two thirds of the crumble dough into the baking pan, and press into an even layer along the bottom. Spread the raspberry jam onto the crust, leaving about a 1/4-inch border around the edges. Top with the fresh raspberries, if using, then sprinkle the remaining crumble mixture on top, from edge to edge. Sprinkle with the chopped walnuts.
  4. Bake for 30-40 minutes, turning once halfway through, until the jam filling is beginning to bubble and the crumble topping is golden brown and has puffed up a bit. Remove from the oven and let cool completely before cutting into bars.

Quick Vanilla Raspberry Jam:

  1. Add the raspberries to a large heavy-bottomed pot. Mash with a wooden spoon to break down the berries. Bring to a full rolling boil, then let boil for a full minute. Add the sugar, stir to combine, and bring back to a boil.
  2. Boil for 4-5 minutes, continuing to stir until the sugar is dissolved and a thick gel forms. Remove from the heat and stir in the vanilla and lemon zest (if using). Let cool to room-temperature, then use for the raspberry jam crumble bars, or spoon into air-tight jars to save for later. Will keep for about a week in the refrigerator, or up to a month in the freezer.


Vegan Option: Substitute vegan butter (such as Earth Balance) or pure, unrefined coconut oil for the butter.

Gluten-Free Option: Substitute the all-purpose flour with ground oat flour (make your own by blending rolled oats in a food-processor or high-speed blender), store-bought gluten-free flour mix, or I’ve also had success with a combination of 2 parts almond meal/flour, 1 part sweet rice flour, and 1 part sorghum flour.


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March 20, 2015

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  • Reply
    Caramel Apple Crumble Bars - Fork Knife Swoon
    October 27, 2015 at 10:33 am

    […] may remember the raspberry jam crumble bars that we made earlier this year. The recipes share the same foundation – but we’re using […]

  • Reply
    David Miller
    April 27, 2015 at 8:42 am

    Beautiful recipe – Perfect for the start of Spring. I look forward to making this.

  • Reply
    Weekend Links and Inspiration
    March 28, 2015 at 6:18 pm

    […]  I am loving this + this crumb/le bars. Great options for […]

  • Reply
    myrna sossner
    March 25, 2015 at 9:53 am

    I want to print your raspberry crumble recipe but there seems to be a problem…it won’t print. I’ll try again later!

    • Reply
      myrna sossner
      March 25, 2015 at 9:58 am

      WOW! Problem fixed! It printed!

      • Reply
        March 25, 2015 at 10:46 pm

        Hi Myrna! I’m so sorry the printing function wasn’t working the first time! Glad it’s fixed now, and hope you enjoy the recipe!

  • Reply
    March 24, 2015 at 8:56 pm

    What if my oven only have a maximum temperature of 250 degrees? 🙁

    • Reply
      March 25, 2015 at 10:45 pm

      Hi Ariel! Are you working in Celsius or Fahrenheit? The bars are baked in a 350 degree F. oven. I should have properly noted in the recipe – fixing now! Sorry for the confusion!

  • Reply
    Mary @ Fit and Fed
    March 24, 2015 at 5:39 pm

    I love the double raspberry aspect of these with both the jam and the fresh raspberries, and of course, you’ve photographed them beautifully. How did you ever get fresh raspberries at your farmer’s market now, in Washington? I didn’t realize you were a fellow Washingtonian– it certainly has been a very odd winter, hasn’t it?

    • Reply
      March 25, 2015 at 10:41 pm

      Thanks so much, Mary! We just moved here this past July, and I definitely expected a colder winter! The fresh raspberries were from Pike’s – and despite the cute berry baskets, I suspect they were probably from California… 🙂 definitely can’t wait for truly local berries!

  • Reply
    March 23, 2015 at 11:35 am

    I love love love your photos. I can totally relate to what you are saying about the weather. I live in the Caribbean, where it is always sunny and warm. But then sometimes (especially during the holidays), I miss winter so much. I guess, we all want what we don’t have..
    It is funny, because I am making something very similar to this for next week. As always, your photos are a great inspiration source.
    Well done.

    • Reply
      March 24, 2015 at 1:41 pm

      Thank you so, so much, Aysegul! I’ll look forward to seeing your recipe!

  • Reply
    Tammy moro
    March 22, 2015 at 2:07 pm

    I didn’t have raspberries so I used dried apricots and cranberries and substituted apricot jam. I had to stop and wash my hands because I wanted to lick them as I was plating the bars.

    • Reply
      March 22, 2015 at 10:34 pm

      Thanks so much, Tammy! Apricot jam sounds fantastic!

  • Reply
    March 22, 2015 at 9:25 am

    Beautiful post Laura. Happy spring to you too! Still waiting for spring in Boston and feeling very winter weary. Your bars might just be the pick me up I need. Thanks!

    • Reply
      March 22, 2015 at 10:33 pm

      Thank you, Kelly! Hope it warms up for you soon!

  • Reply
    March 21, 2015 at 5:23 am

    Sounds lovely. Thank you and Happy Spring.

    • Reply
      March 21, 2015 at 1:06 pm

      Thank you so much, Liz! Happy Spring to you too!!

  • Reply
    Katrina @ Warm Vanilla Sugar
    March 21, 2015 at 4:47 am

    I have had winter fatigue for what feels like FOREVER! I live in Montreal, and have lived in Canada my whole life and after Christmas I am sooo ready for Spring. A big, warm, bar filled with berries sounds perfect right now!

    • Reply
      March 21, 2015 at 1:06 pm

      Oh man, Seattle has nothing on a Canadian winter!! Even still, I am so, so ready for sunny days! Thanks, Katrina!!